> It tries to get people to take a concept that has been understood for thousands of years for physical objects
That's false. Property used to mean a set of rights that gives legal control over valuable things, not limited to simply "physical objects", has been around for thousands of years. Ancients used it for future payments, interest (which could be traded), and much more.
Ancient Syrians (600BC) gave exclusive rights for breadmakers to make certain breads for a year window, and these were property rights, tradeable, sellable, had futures, etc. Ancient Greeks had a patent system for "a new refinement in luxury" that were property rights. Athenaeus (200AD) describes the system in place then where inventors could own their inventions and be the only one to profit for some time.
These are all property rights - something owned by a person, sellable, tradeable, has value, exclusive use. That you (and too many others) seem to think property can only be a "physical object" is as short-sighted as some who claim property can only be land.